Nile blue

== English == === Noun === Nile blue (countable and uncountable, plural Nile blues) A pale greenish blue colour. A stain used in biology and histology. === Adjective === Nile blue (not comparable) Of a pale greenish blue colour. === See also === Nile green === Anagrams === Blue Nile, belluine, blue line, blueline, line-blue